Q35 of 400 Page 168

Describe how sodium and chlorine atoms are changed into ions when they react with each other to form sodium chloride, NaCl. What is the name given to this type of bonding? (At. No of sodium = 11; At. No. of chlorine = 17)

The name given to this type of bonding ionic bonding. This is because both the atoms share there electrons to gain the electronic configuration.

More from this chapter

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33 Draw the electron-dot structure of a hydrogen chloride molecule:

(i) Which inert gas does the H atom in HCl resemble in electron arrangement?


(ii) Which inert gas does the Cl atom in HCl resemble in electron arrangement?

 34 What type of bonding would you expect between the following pairs of elements ?

(i) Calcium and Oxygen


(ii) Carbon and Chlorine


(iii) Hydrogen and Chlorine

 36 What is the difference between a cation and an anion ? How are they formed ? Give the names and symbols of one cation and one anion. 37 Using electron-dot diagrams which show only the outermost shell electrons, show how a molecule of nitrogen, N2, is formed from two nitrogen atoms. What name is given to this type of bonding? (Atomic number of nitrogen is 7)